The flora of the islet of Glavat investigated in 2017, showing the diversity of 29 species and subgroups of 16 families. The most populated are Poaceae (17,24%), Caryophyliaceae and Chenopodiaceae (13,79%), and Boraginaceae, Primulaceae and Cichoriaceae (6,89%). The largest number of species belongs to the Mediterranean Flora Element (68%) and the widespread plants (27.59%). The most common forms of life are Terophytes (48.28%), Hemycryptophytes (20.69%), Chamaephyta and Geophytes (10.34% ). The largest number of individuals in the population has a type of Parapholis incurva. Protected and strictly protected species are represented by 17.24%, vulnerable to susceptible taxa belong to 6.9%, endemic species 3.45%.